Wing NeedleTM – Clinical Rationale

Fig. 1 Anaesthetic coverage of an intra or paracervical block only

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Fig. 2 Anaesthetic coverage of the global–local anaesthesia

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By injecting local anaesthesia via the intra or paracervical route only, the nerves in the
upper part of the uterus remain un-anaesthetised and therefore susceptible to pain during
endometrial ablation or other hysteroscopic procedures1. (See Fig 1.)

By introducing local anaesthesia hysteroscopically into the fundus using Wing Needle,
the nerves to the upper part of the uterus are also blocked1. (See Fig 2.)

Conclusion

“Through a combination of a paracervical block and a fundal block, the latter placed in the submucosal myometrium during the preoperative hysteroscopy, it is possible to establish a globally active local anaesthesia, the “Global–Local”,which makes procedures such as endometrial ablation safely performable in a low-tech out-of-hospital office setting with very little discomfort to the patient and without need of additional anaesthetics, sedatives and tranquilizing agents, anaesthesiological support or recovery facilities.”